This is not 25 trains a day (otherwise you would expect 25 * 7 trains per week = 175You actually only have 24 * 7 = 168. You'll get 169 if you include the one at the start of the next week - but you can't double count it.

If you include the 8:01 train 2 trains per hour, you can't include it in the next hour.

So you might thing 7:01 to 8:01 = 2 trains, 2 trains per hour. (7:01 & 8:01)But you would then get 8:01 to 9:01 = 1 train, 1 train per hour. (9:01)

The frequency of the trains has not altered, so one of those conclusions must be wrong.

So in any given period, If you include the one at the start of the next period you'll get an extra train.

OK. I'll stop now, because it you don't understand that, you probably think you have 2 birthday's a year.

I genuinely laughed at the life this has taken on since my (innocent) comment that it isn't currently 3 trains an hour. I also think the greatest argument was just the one who (bless em) listed out every minute between 7.01 and 8.01.